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Aten, Sydney; Hansen, Katelin F.; Snider, Kaitlin; Wheaton, Kelin; Kalidindi, Anisha; Garcia, Ashley; Alzate-Correa, Diego; Hoyt, Kari R.; Obrietan, Karl – Learning & Memory, 2018
The microRNA miR-132 serves as a key regulator of a wide range of plasticity-associated processes in the central nervous system. Interestingly, miR-132 expression has also been shown to be under the control of the circadian timing system. This finding, coupled with work showing that miR-132 is expressed in the hippocampus, where it influences…
Descriptors: Neurology, Brain Hemisphere Functions, Memory, Animals
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Yu, Dinghui; Tan, Ying; Chakraborty, Molee; Tomchik, Seth; Davis, Ronald L. – Learning & Memory, 2018
The evolutionarily conserved Elongator Complex associates with RNA polymerase II for transcriptional elongation. Elp3 is the catalytic subunit, contains histone acetyltransferase activity, and is associated with neurodegeneration in humans. Elp1 is a scaffolding subunit and when mutated causes familial dysautonomia. Here, we show that…
Descriptors: Olfactory Perception, Animals, Genetics, Memory
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Schümann, Dirk; Sommer, Tobias – Learning & Memory, 2018
Emotional arousal enhances memory encoding and consolidation leading to better immediate and delayed memory. Although the central noradrenergic system and the amygdala play critical roles in both effects of emotional arousal, we have recently shown that these effects are at least partly independent of each other, suggesting distinct underlying…
Descriptors: Brain Hemisphere Functions, Emotional Response, Arousal Patterns, Memory
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Yang, Qizong; Antonov, Igor; Castillejos, David; Nagaraj, Anagha; Bostwick, Caleb; Kohn, Andrea; Moroz, Leonid; Hawkins, Robert D. – Learning & Memory, 2018
Long-term but not short-term memory and synaptic plasticity in many brain areas require neurotrophin signaling, transcription, and epigenetic mechanisms including DNA methylation. However, it has been difficult to relate these cellular mechanisms directly to behavior because of the immense complexity of the mammalian brain. To address that…
Descriptors: Memory, Animals, Genetics, Brain
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Briggs, Sherri B.; Hafenbreidel, Madalyn; Young, Erica J.; Rumbaugh, Gavin; Miller, Courtney A. – Learning & Memory, 2018
Using pharmacologic and genetic approaches targeting actin or the actin-driving molecular motor, nonmuscle myosin II (NMII), we previously discovered an immediate, retrieval-independent, and long-lasting disruption of methamphetamine- (METH-) and amphetamine-associated memories. A single intrabasolateral amygdala complex infusion or systemic…
Descriptors: Role, Memory, Genetics, Drug Therapy
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Perez, Leticia; Patel, Ushma; Rivota, Marissa; Calin-Jageman, Irina E.; Calin-Jageman, Robert J. – Learning & Memory, 2018
Most long-term memories are forgotten. What happens, then, to the changes in neuronal gene expression that were initially required to encode and maintain the memory? Here we show that the decay of recall for long-term sensitization memory in "Aplysia" is accompanied both by a form of savings memory (easier relearning) and by persistent…
Descriptors: Long Term Memory, Genetics, Recall (Psychology), Animals
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Briskin-Luchinsky, Valeria; Levy, Roi; Halfon, Maayan; Susswein, Abraham J. – Learning & Memory, 2018
Training "Aplysia" with inedible food for a period that is too brief to produce long-term memory becomes effective in producing memory when training is paired with a nitric oxide (NO) donor. Lip stimulation for the same period of time paired with an NO donor is ineffective. Using qPCR, we examined molecular correlates of brief training…
Descriptors: Animals, Training, Food, Long Term Memory
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Baggett, Vincent; Mishra, Aditi; Kehrer, Abigail L.; Robinson, Abbey O.; Shaw, Paul; Zars, Troy – Learning & Memory, 2018
Animals in a natural environment confront many sensory cues. Some of these cues bias behavioral decisions independent of experience, and action selection can reveal a stimulus-response (S-R) connection. However, in a changing environment it would be a benefit for an animal to update behavioral action selection based on experience, and learning…
Descriptors: Cues, Stimuli, Animal Behavior, Entomology
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Shu, Guanhua; Kramár, Enikö A.; López, Alberto J.; Huynh, Grace; Wood, Marcelo A.; Kwapis, Janine L. – Learning & Memory, 2018
Multiple epigenetic mechanisms, including histone acetylation and nucleosome remodeling, are known to be involved in long-term memory formation. Enhancing histone acetylation by deleting histone deacetylases, like HDAC3, typically enhances long-term memory formation. In contrast, disrupting nucleosome remodeling by blocking the neuron-specific…
Descriptors: Long Term Memory, Genetics, Molecular Structure, Neurological Impairments
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Jia, Margaret; Travaglia, Alessio; Pollonini, Gabriella; Fedele, Giuseppe; Alberini, Cristina M. – Learning & Memory, 2018
The medial prefrontal cortex (mPFC) plays a critical role in complex brain functions including decision-making, integration of emotional, and cognitive aspects in memory processing and memory consolidation. Because relatively little is known about the molecular mechanisms underlying its development, we quantified rat mPFC basal expression levels…
Descriptors: Animals, Brain Hemisphere Functions, Biochemistry, Cognitive Processes
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Childs, Jessica E.; DeLeon, Jaime; Nickel, Emily; Kroener, Sven – Learning & Memory, 2017
Drugs of abuse cause changes in the prefrontal cortex (PFC) and associated regions that impair inhibitory control over drug-seeking. Breaking the contingencies between drug-associated cues and the delivery of the reward during extinction learning reduces rates of relapse. Here we used vagus nerve stimulation (VNS) to induce targeted synaptic…
Descriptors: Cocaine, Genetics, Drug Use, Drug Abuse
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Lyons, Lisa C.; Gardner, Jacob S.; Gandour, Catherine E.; Krishnan, Harini C. – Learning & Memory, 2017
We investigated the in vivo role of protein degradation during intermediate (ITM) and long-term memory (LTM) in "Aplysia" using an operant learning paradigm. The proteasome inhibitor MG-132 inhibited the induction and molecular consolidation of LTM with no effect on ITM. Remarkably, maintenance of steady-state protein levels through…
Descriptors: Memory, Biochemistry, Brain Hemisphere Functions, Role
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Criado-Marrero, Marangelie; Morales Silva, Roberto J.; Velazquez, Bethzaly; Hernández, Anixa; Colon, María; Cruz, Emmanuel; Soler-Cedeño, Omar; Porter, James T. – Learning & Memory, 2017
The factors influencing resiliency to the development of post-traumatic stress disorder (PTSD) remain to be elucidated. Clinical studies associate PTSD with polymorphisms of the FK506 binding protein 5 (FKBP5). However, it is unclear whether changes in FKBP5 expression alone could produce resiliency or susceptibility to PTSD-like symptoms. In this…
Descriptors: Brain, Conditioning, Fear, Posttraumatic Stress Disorder
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Ciernia, Annie Vogel; Kramár, Enikö A.; Matheos, Dina P.; Havekes, Robbert; Hemstedt, Thekla J.; Magnan, Christophe N.; Sakata, Keith; Tran, Ashley; Azzawi, Soraya; Lopez, Alberto; Dang, Richard; Wang, Weisheng; Trieu, Brian; Tong, Joyce; Barrett, Ruth M.; Post, Rebecca J.; Baldi, Pierre; Abel, Ted; Lynch, Gary; Wood, Marcelo A. – Learning & Memory, 2017
Recent human exome-sequencing studies have implicated polymorphic Brg1-associated factor (BAF) complexes (mammalian SWI/SNF chromatin remodeling complexes) in several intellectual disabilities and cognitive disorders, including autism. However, it remains unclear how mutations in BAF complexes result in impaired cognitive function. Post-mitotic…
Descriptors: Intellectual Disability, Autism, Genetics, Neurological Impairments
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Zhang, Wen-Hua; Zhou, Jin; Pan, Han-Qing; Wang, Xiao-Yang; Liu, Wei-Zhu; Zhang, Jun-Yu; Yin, Xiao-Ping; Pan, Bing-Xing – Learning & Memory, 2017
The role of d subunit-containing GABA[subscript A] receptor (GABA[subscript A](d)R) in fear generalization is uncertain. Here, by using mice with or without genetic deletion of GABA[subscript A](d)R and using protocols in which the conditioned tone stimuli were cross presented with different nonconditioned stimuli, we observed that when the two…
Descriptors: Adults, Animals, Fear, Brain
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